Hello, I did find some Native American Ackleys once, while looking for records of my own Ackley line.
There were two students at the Carlisle Indian Industrial School 1879-1918 [Pennsylvania].You can find the file in the State search at USGenweb.com. Their names were James and Albert Ackley, of the Chippewa nation.
I know that my gg grandfather, Elias C. Ackley (1826-1873) was returning from the California Gold Rush with a friend, and was attacked and robbed. The thieves cut their throats, and an Indian tribe rescued and nursed them back to health.*
When I found the file, I wondered if they were related, or descended from friends of his. ;)